diff --git a/trans.sh b/trans.sh
index 7e6782a..50cbfff 100644
--- a/trans.sh
+++ b/trans.sh
@@ -2328,6 +2328,10 @@ get_disk_logic_sector_size() {
     blockdev --getss "$1"
 }
 
+is_4kn() {
+    [ "$(blockdev --getss "$1")" = 4096 ]
+}
+
 is_xda_gt_2t() {
     disk_size=$(get_disk_size /dev/$xda)
     disk_2t=$((2 * 1024 * 1024 * 1024 * 1024))
@@ -6527,6 +6531,12 @@ EOF
         sed -i 's/EnableEMS=0/EnableEMS=1/i' $startnet_cmd
     fi
 
+    # 4kn EFI 分区最少要 260M
+    # https://learn.microsoft.com/windows-hardware/manufacture/desktop/hard-drives-and-partitions
+    if is_4kn /dev/$xda; then
+        sed -i 's/is4kn=0/is4kn=1/i' $startnet_cmd
+    fi
+
     # Windows Thin PC 有 Windows\System32\winpeshl.ini
     # [LaunchApps]
     # %SYSTEMDRIVE%\windows\system32\drvload.exe, %SYSTEMDRIVE%\windows\inf\sdbus.inf
diff --git a/windows-setup.bat b/windows-setup.bat
index 1789490..a71e8a0 100644
--- a/windows-setup.bat
+++ b/windows-setup.bat
@@ -93,6 +93,14 @@ for /f "tokens=3" %%a in (X:\disk.txt) do (
 )
 del X:\disk.txt
 
+rem 这个变量会被 trans.sh 修改
+set is4kn=0
+if "%is4kn%"=="1" (
+    set EFISize=260
+) else (
+    set EFISize=100
+)
+
 rem 重新分区/格式化
 (if "%BootType%"=="efi" (
     echo select disk %DiskIndex%
@@ -104,7 +112,7 @@ rem 重新分区/格式化
     echo select part 3
     echo delete part override
 
-    echo create part efi size=100
+    echo create part efi size=%EFISize%
     echo format fs=fat32 quick
 
     echo create part msr size=16